Steve asked Ralph –
“Ralph,
Do you know where could I buy a drive card for a 18 year old Martin Shear?”
We checked with Geo M. Martin Co. and they say that the drive card would have been supplied by the drive manufacturer and suggest that you start by contacting them. You will probably need the model and serial number from the drive and/or card if you have them to make sure you have the proper card.
Have you tried to contact the drive manufacturer yet?
-Ralph